What I Do in the First 90 Days After I Buy a Business

The price you pay for an e-commerce business is the easy part. What happens in the first 90 days after you buy it is what decides whether that price was right. I've reviewed more than 50 e-commerce businesses as a buyer and bought into Reach Social Commerce myself in October 2025. The pattern holds every time: a deal rarely dies in diligence. It dies, or quietly stalls, in the first three months after the wire goes out.

This is the operating sequel to what I look for before I acquire a business and the full acquisition process. Those cover getting to close. This is what I actually do once I own it.

Why the First 90 Days Decide the Deal

Harvard Business Review's 2024 review of merger outcomes points to a stat that's been true since Bain & Company first published it two decades earlier: roughly 70% of mergers and acquisitions end up destroying value instead of creating it. That number comes from corporate M&A, not $500K e-commerce deals, but the mechanism is identical at any size. Nobody loses the deal on the spreadsheet. They lose it on integration: a team that quits because nobody talked to them, a supplier relationship that goes cold, a PPC account nobody touches for six weeks while the new owner is still figuring out logins.

A 90-day plan isn't a nice-to-have. It's the difference between buying a business and buying a job that used to belong to someone else.

Week 1: Lock Down Access, Change Nothing Else

Day one is administrative, not strategic. Get into every system before you do anything else: the storefront or Seller Central, the ad accounts, the supplier portals, email, any software the business runs on. Change the passwords. Change the bank account tied to withdrawals. Confirm nothing is still running on autopilot through the seller's old credentials.

If this is an Amazon business, you're not logging into the seller's existing account. Amazon's 2026 Business Solutions Agreement update bans transferring a seller's rights under the agreement, so the deal has to close as an asset sale: your own entity, approved as a new seller, relaunching the catalog under its own account from day one. Build that approval timeline into your close date, not after it.

Beyond access, week one is listening, not changing. Meet every contractor and employee personally. Introduce yourself to the key suppliers directly, not through an email the seller forwards. Don't touch pricing, ad strategy, or anything else customer-facing yet. You don't know which details are actually driving the results you just paid for, and the fastest way to find out is to watch the business run for a week before you touch it.

Weeks 2-4: Learn the Real Business, Not the Pitch Deck

This is where you verify what diligence told you against what's actually happening. If you ran the 43-check due diligence list before close, weeks 2-4 is where you confirm those answers were real, not just documented.

Three things matter most in this window.

Secure the people who actually run it. If there's a team, this is your highest retention-risk window. People don't quit on day one. They quit around day 45, when the new owner is still finding their footing and communication has gone quiet. I wrote about this exact failure mode from the other side of an acquisition, in what changes when you sell and stay on: the people who depend on you need to hear from you on a schedule you set, not whenever you get around to it. Same rule here, just pointed at a team you now own instead of one you used to run.

Get ahead of the cash cycle. Payment terms, ad spend timing, and inventory reorder cadence rarely show up clean in a P&L. Map the actual cash cycle in your first month: when money lands from the platform, when suppliers get paid, and how much working capital the business needs to carry between the two. A business that looks profitable on paper can run out of runway in month two if you don't know this cold.

Document what the seller knows that isn't written down. Every acquired business runs partly on knowledge that lives in one person's head: why this supplier gets the rush order, why that SKU's ad budget is capped, which customer complaints actually matter. Get it on paper during the transition period you negotiated at close, because that knowledge walks out the door the day the seller stops returning calls.

Days 30-60: Fix What's Bleeding, Not What Looks Broken

By day 30 you've watched the business run long enough to know where it's actually losing money, which is usually not where it looks broken. The common pattern: PPC campaigns with structure nobody has touched in months, product listings running copy that doesn't match the current version of the product, one or two SKUs quietly dragging down the account's overall ROAS while still active.

Fix those first. Don't redesign the business in month two. A fresh Amazon account audit run in this window is the fastest way to find the PPC waste and listing gaps the previous owner left on the table, because you're now looking at the account with no sunk-cost attachment to the old structure.

This is also the window where you'll feel the pull to make a dozen changes at once. Resist it. Every change you make resets the clock on knowing whether it worked. Fix the two or three things that are actually bleeding money, measure the result, then move to the next two or three.

Days 60-90: Build What Wasn't There

This is where you start layering in the advantages the previous owner never built. If there was no structured process for launching new SKUs, build one. If the business was Amazon-only and the category is creator-compatible, this is the window to explore TikTok Shop as a second channel instead of staying dependent on one platform's fee structure and algorithm. If there was no real reporting system and no documented SOPs, this is when you install them, because by now you understand the business well enough to know which systems will actually get used and which ones would have just been theater in week one.

The target for year one is 20-40% revenue growth. That's the bar I hold every acquisition to before I'll make an offer, and it doesn't come from one dramatic move. It comes from fixing the basics faster than the previous owner did and adding one new channel or capability on top of what was already working before you ever got involved.

The Test I Run at Day 90

At the 90-day mark, I ask one question: could I step away for two weeks right now and have the business run without me sending a single message? If the answer is no, the business still runs on the previous owner's habits, just with your name on the bank account. If the answer is yes, you've actually bought a business instead of a job.

That's the real finish line of the first 90 days. Not a revenue number. Whether the thing you bought can run without you standing over it, because that's what makes it worth owning instead of just worth doing.

If You're Evaluating a Deal Right Now

Everything above assumes you already closed. If you're still deciding whether to buy, the filter that gets you to a clean close in the first place is the 50-deal framework I use before I get on a call, and the specific numbers I check first are in what I actually look for.

If you're on the other side of this, a founder wondering what the first 90 days look like for whoever buys your business, that's exactly the plan above, run on every deal I close directly. Here's my process as a direct buyer: no broker, no committee, and the post-close plan in this post is what you can expect starting the day after we close. Current acquisition criteria are on the deals page.

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